Extra Clues for these last few questions gratefully received:
7. Ooh, itchy, better change your trousers (4 words)
10. One of the four from Liverpool produce the drink (2 words) would have said Betelgeuse except it's only 1 word and spelled completely differently
20. A bovine with an entrance produces milk and more (3 words)
22. The snapper from Scotland (well, Australia really!) (2 words ) sea bream just doesn't fit in the alphabetical run
41. Starving animal who like to wallow (2 words) how do you make pig into 2 words?
53. How this bird walks perhaps (2 words) pelican crossing??